US Bridges

Granite Street over Recreation Trail

Fair

Hillsborough County, New Hampshire · 0.42MI RTE 3 · Structure no. 016101360005900

Built
1900
125 years old, rebuilt 1973
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
603
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Granite Street over Recreation Trail is a steel stringer/multi-beam or girder carrying Granite Street over Recreation Trail in Hillsborough County, New Hampshire. It was built in 1900 and reconstructed in 1973, so it is 125 years old, older than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 603 vehicles a day, roughly 5% of them trucks, projected to reach 892 by 2043. The structure is 60 ft (18.3 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGranite Street
CrossesRecreation Trail
Location0.42MI RTE 3
RouteCity Street 0
Coordinates42.98346, -71.47966
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating57.2 US tons
Inventory rating34.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span52 ft (15.8 m)
Deck width41 ft (12.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic603 (2023)
Projected traffic892 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Granite Street over Recreation Trail built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1973.

What condition is Granite Street over Recreation Trail in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Granite Street over Recreation Trail carry?

About 603 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Granite Street over Recreation Trail?

The structure is 60 ft (18.3 m) long with a longest span of 52 ft (15.8 m) and a deck 41 ft wide.

Who owns Granite Street over Recreation Trail?

It is owned by the City or Municipal Highway Agency.